Yuav siv sijhawm ntev npaum li cas rau pob txha kom ua rau petrified? Teb: Fossils txhais tau tias yog cov seem lossis cov kab mob uas tuag ntau dua10, 000 xyoo dhau los, yog li, los ntawm txhais lub sijhawm tsawg kawg uas nws yuav siv los ua pob txha yog 10, 000 xyoo..
Cov txheej txheem petrification siv sijhawm ntev npaum li cas?
Nws yuav siv sij hawm millions xyoo rau ntoo petrified los ua. Cov txheej txheem pib thaum ntoo yog faus sai thiab tob los ntawm dej thiab ntxhia nplua nuj sediment, …
pob txha Fossilise li cas?
Qee zaum dej hauv av dissolves faus pob txha los yogplhaub, tawm hauv qab pob txha-los yog plhaub-zoo li lub qhov los yog imprint nyob rau hauv cov sediment. Qhov no yog lub ntuj pwm. Yog tias cov dej nplua nuj nyob hauv cov zaub mov puv qhov chaw no, cov muaju tuaj yeem tsim thiab tsim cov pob txha hauv cov pob txha qub lossis lub plhaub, hu ua pob txha pob txha.
Yuav ua li cas paub yog pob txha pob txha?
ib yam dab tsi dhau los ua pob txha, nws ua pob zeb, lossis ua los ntawm cov pob zeb. Qhov no feem ntau txhais tau tias nce qhov hnyav. Cov pob txha pob txha hnyav dua li cov pob txha ib txwm muaj, pom tau tias yog li ntawd. Yog li, yog tias koj qhov khoom hnyav, nws yuav yog pob txha.
Yuav siv sijhawm ntev npaum li cas rau pob txha tig dub?
Nyob rau hauv ib los yog ob hnub ntawm koj qhov raug mob, cov ntshav uas tau sau ntawm qhov chaw raug mob hloov xim xiav lossis ntshav tsaus. Tom qab 5 mus rau 10 hnub, qhov nqaij ntuag hloov xim ntsuab lossis daj.
